Instructor Pete Gilmore will teach us about Erica Flapan’s new book, Knots, Molecules and the Universe: An Introduction to Topology (published by The American Mathematical Society). The first eight chapters of the book introduce us to the topology and geometry of surfaces and 3-manifolds (geometric objects that are possibilities for the universe we inhabit). We will then discuss molecules, and an extension on Knot Theory might be planned by a vote of everyone attending. Register with the Senior Center's Front Desk at 617-796-1660. Free.